水産動物筋肉のエキス成分-II : クルマエビ筋肉エキス中のアミノ酸について

概要

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Succeeding to the previous paper, 1) in which the amino acid content of the muscle extracts of a squid was given, the present paper deals with the prawn muscle extracts. As shown in Table 1, the pattern of amino acids in the prawn muscle extracts considerably differed from that of the squid muscle extracts. Glycine was most abundant and occupied the half of total amino acids. Arginine, proline, serine, glutamic acid and alanine were present in a relatively high level. The content of aspartic acid was very low, as was observed in squid muscle. After hydrolysis, the most amino acids increased slightly, but the increasing rate of glutamic acid, aspartic acid and glycine were comparatively large. The recovered amino acid nitrogen in the analysis amounted to about 70% of the extracted nitrogen, showing that amino acids are main component of the prawn muscle extracts.
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